I remember when I worked for a registry (not a registrar) before the first launch of gTLD's. Bizarrely one of the products they were excited to promote was not to register domains under a TLD, but rather, to _block_ them. The idea being that if you wanted to make sure someone else didn't register <company_name>.[sucks, stupid, whatever] you had to pay them (Donuts) to make sure it didn't happen. It felt extortionate.

Apparently it's still a thing. https://kb.centralnicreseller.com/services/brand-protection/...